Anode Material Innovations for Boosting Battery Energy Density
DOI:
https://doi.org/10.54097/9ajsrc83Keywords:
Anode materials; lithium-ion batteries; battery energy densities.Abstract
As global efforts intensify to combat climate change, reducing carbon emissions has become a priority, driving the adoption of electric vehicles (EVs) that rely on lithium-ion batteries. However, enhancing battery energy density is essential for extending EV driving ranges and further reducing greenhouse gas emissions. This review examines advancements in anode materials for lithium-ion batteries, focusing on their impact on energy density. Traditional anodes, such as graphite and lithium metal, are limited by low energy density and safety concerns. Recent innovations, including silicon, tin-based, transition metal oxides, and alloy-based anodes, offer higher theoretical capacities but face challenges like significant volume expansion, low thermal stability, and poor cycle performance. Strategies to mitigate these issues, such as nanosizing, structural design, and composite synthesis, are discussed. Despite progress, achieving the ultimate energy density remains elusive, with no single material meeting all the necessary criteria. Future research must focus on balancing energy density with durability, cost-effectiveness, and safety to realize the full potential of next-generation lithium-ion batteries.
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